The 15,000-cubic-yard self-propelled trailing suction hopper dredge on order at the Keppel AmFELS shipyard in Brownsville, Texas, for Manson Construction Co. will be powered by five Wabtec V250MDC marine diesel engines (three 16V250MDC units and two 12V250MDC units).
To be named Frederick Paup, the dredge has a length of 420 feet, breadth of 81 feet and draft of 28.5 feet and will be the largest hopper dredge in the U.S.
The Wabtec V250 series diesel engines will be manufactured at Wabtec’s Grove City, Pa., plant. These advanced engines reduce air pollutant emissions by up to 70 percent, through technologies such as high-pressure common rail fuel injection, two-stage turbocharging with inter- and aftercooling, advanced exhaust gas re-circulation, and an upgraded control system.
The engines meet EPA Tier 4 and the IMO Tier III emissions standards without the need for urea aftertreatment. Wabtec’s design requires up to 50% less weight and up to 40% less of shipboard space, provides significant operating cost savings, and reduces operational hazards and cost associated with handling aftertreatment chemicals such as urea.